Goodwill and Intangible Assets - Summary of Company's Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]
Cost	$ 12,202	$ 12,218
Accumulated Amortization	(5,494)	(3,234)
Net Carrying Amount	6,707us-gaap_FiniteLivedIntangibleAssetsNet	8,984us-gaap_FiniteLivedIntangibleAssetsNet
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Cost	5,770	5,770
Accumulated Amortization	(3,826)	(2,159)
Net Carrying Amount	1,944	3,611
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Cost	5,682	5,698
Accumulated Amortization	(1,183)	(816)
Net Carrying Amount	4,499	4,882
Non-Competition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Cost	380	380
Accumulated Amortization	(232)	(106)
Net Carrying Amount	148	274
Tradenames - Finite Life [Member]
Finite Lived Intangible Assets [Line Items]
Cost	370	370
Accumulated Amortization	(253)	(153)
Net Carrying Amount	$ 117	$ 217

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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